<template>
    <div>
        <el-breadcrumb separator="/">
            <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
            <el-breadcrumb-item>用户管理</el-breadcrumb-item>
            <el-breadcrumb-item>用户列表</el-breadcrumb-item>
        </el-breadcrumb>

        <el-card>
            <el-row :gutter="20">
                <el-col :span="7">
                    <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getUserList()">
                        <el-button slot="append" icon="el-icon-search" @click="getUserList()"></el-button>
                    </el-input>
                </el-col>
                <el-col :span="4">
                    <el-button type="primary" @click="dialogFormVisible=true">添加用户</el-button>
                </el-col>
            </el-row>

            <el-table :data="userList" border stripe>
                <el-table-column type="index" label="#"></el-table-column>
                <el-table-column prop="username" label="姓名"></el-table-column>
                <el-table-column prop="email" label="邮箱"></el-table-column>
                <el-table-column prop="mobile" label="电话"></el-table-column>
                <el-table-column prop="role_name" label="角色"></el-table-column>
                <el-table-column label="状态">
                    <template slot-scope="scope">
                        <el-switch v-model="scope.row.mg_state" @change="userStateChanged(scope.row)"></el-switch>
                    </template>
                </el-table-column>
                <el-table-column label="操作" width="180px">
                    <template slot-scope="scoap">
                        <el-button type="primary" icon="el-icon-edit" size="mini" @click="showEditDialog(scoap.row)"></el-button>
                        <el-button type="danger" icon="el-icon-delete" size="mini" @click="deleteUser(scoap.row.id)"></el-button>
                        <el-tooltip effect="dark" content="分配角色" placement="top" :enterable="false">
                            <el-button type="warning" icon="el-icon-setting" size="mini" 
                            @click="setRole(scoap.row)"></el-button>
                        </el-tooltip>
                    </template>
                </el-table-column>
            </el-table>
            <el-pagination
            @size-change="handleSizeChange"
            @current-change="handleCurrentChange"
            :current-page="queryInfo.pagenum"
            :page-sizes="[2, 10, 30, 50]"
            :page-size="queryInfo.pagesize"
            layout="total, sizes, prev, pager, next, jumper"
            :total="total">
            </el-pagination>
        </el-card>

        <el-dialog title="添加用户" :visible.sync="dialogFormVisible" width="50%" @close="addDialogClosed()">
            <el-form :model="addForm" :rules="addFormRoles" ref="addFormRef">
                <el-form-item label="用户名" prop="username">
                <el-input v-model="addForm.username"></el-input>
                </el-form-item>
                <el-form-item label="密码" prop="password">
                <el-input v-model="addForm.password" type="password"></el-input>
                </el-form-item>
                <el-form-item label="邮箱" prop="email">
                <el-input v-model="addForm.email"></el-input>
                </el-form-item>
                <el-form-item label="手机" prop="mobile">
                <el-input v-model="addForm.mobile"></el-input>
                </el-form-item>
            </el-form>
            <div slot="footer" class="dialog-footer">
                <el-button @click="dialogFormVisible = false">取 消</el-button>
                <el-button type="primary" @click="addUser()">确 定</el-button>
            </div>
        </el-dialog>

        <el-dialog title="修改用户" :visible.sync="dialogEditFormVisible" width="50%" @close="editDialogClosed()">
            <el-form :model="editForm" :rules="editFormRoles" ref="editFormRef">
                <el-form-item label="用户名" prop="username">
                <el-input v-model="editForm.username" :disabled="true"></el-input>
                </el-form-item>
                <el-form-item label="邮箱" prop="email">
                <el-input v-model="editForm.email"></el-input>
                </el-form-item>
                <el-form-item label="手机" prop="mobile">
                <el-input v-model="editForm.mobile"></el-input>
                </el-form-item>
            </el-form>
            <div slot="footer" class="dialog-footer">
                <el-button @click="dialogEditFormVisible = false">取 消</el-button>
                <el-button type="primary" @click="updateUser()">确 定</el-button>
            </div>
        </el-dialog>

        <el-dialog title="分配角色" :visible.sync="dialogRoleVisible" width="50%" @close="setRoleDialogClosed()">
            <div>
                <p>当前的用户：{{userInfo.username}}</p>
                <p>当前的角色：{{userInfo.role_name}}</p>
                <p>分配新角色：
                    <el-select v-model="selectedRoleId" placeholder="请选择">
                        <el-option
                        v-for="item in rolesList"
                        :key="item.id"
                        :label="item.roleName"
                        :value="item.id">
                        </el-option>
                    </el-select>
                </p>
            </div>
            <div slot="footer" class="dialog-footer">
                <el-button @click="dialogRoleVisible = false">取 消</el-button>
                <el-button type="primary" @click="saveUserRoles(userInfo.id)">确 定</el-button>
            </div>
        </el-dialog>
    </div>
</template>

<script>
export default {
    data(){
        var checkEmail = (rule, value, callback) => {
            const regEmail=/^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+([a-zA-Z0-9_-])+/

            if(regEmail.test(value)){
                return callback();
            }

            callback(new Error('邮箱格式有误'))
        };

        return{
            //获取用户列表的参数对象
            queryInfo:{
                query: '',
                pagenum: 1,
                pagesize: 2
            },
            userList: [],
            total: 0,
            dialogFormVisible: false,
            dialogEditFormVisible:false,
            dialogRoleVisible:false,
            addForm: {
                username: '',
                password: '',
                email: '',
                mobile: ''
            },
            editForm: {
                id: '',
                username: '',
                email: '',
                mobile: ''
            },
            addFormRoles: {
                username: [
                    { required: true, message: '请输入用户名', trigger: 'blur' },
                ],
                password: [
                    { required: true, message: '请输入密码', trigger: 'blur' },
                ],
                email: [
                    { required: true, message: '请输入邮箱', trigger: 'blur' },
                    { validator: checkEmail ,trigger: 'blur'}
                ],
                mobile: [
                    { required: true, message: '请输入手机', trigger: 'blur' },
                ],
            },
            editFormRoles: {
                username: [
                    { required: true, message: '请输入用户名', trigger: 'blur' },
                ],
                email: [
                    { required: true, message: '请输入邮箱', trigger: 'blur' },
                    { validator: checkEmail ,trigger: 'blur'}
                ],
                mobile: [
                    { required: true, message: '请输入手机', trigger: 'blur' },
                ],
            },
            userInfo:{},
            rolesList:{},
            selectedRoleId:''
        }
    },
    created(){
        this.getUserList()
    },
    methods:{
        async getUserList(){
            const {data: res} = await this.$http.get('users',{params: this.queryInfo})

            if(res.meta.status !== 200) return this.$message.error(res.meta.msg)

            this.userList = res.data.users
            this.total =res.data.total
        },
        handleSizeChange(newSize){
            this.queryInfo.pagesize=newSize
            this.getUserList()
        },
        handleCurrentChange(newPage){
            this.queryInfo.pagenum=newPage
            this.getUserList()
        },
        async userStateChanged(userInfo){
            const {data: res} = await this.$http.put(`users/${userInfo.id}/state/${userInfo.mg_state}`)

            if(res.meta.status !== 200) {
                userInfo.mg_state=!userInfo.mg_state
                return this.$message.error('更新用户状态失败')
            }

            return this.$message.success('更新用户状态成功')
        },
        addUser(){
            this.$refs.addFormRef.validate(async valid=>{
                if (!valid) return

                const { data: res } = await this.$http.post('users', this.addForm)

                if (res.meta.status !== 201) return this.$message.error('添加用户失败!')

                this.dialogFormVisible=false
                this.$refs.addFormRef.resetFields()

                this.getUserList()
                return this.$message.success('添加用户成功!')
            })
        },
        addDialogClosed(){
            this.$refs.addFormRef.resetFields()
        },
        editDialogClosed(){
            this.$refs.editFormRef.resetFields()
        },
        async showEditDialog(userInfo){
            const {data: res} = await this.$http.get(`users/${userInfo.id}`)

            if(res.meta.status !== 200) return this.$message.error('查询用户信息失败')

            this.editForm = res.data

            this.dialogEditFormVisible=true
        },
        updateUser(){
            this.$refs.editFormRef.validate(async valid=>{
                if (!valid) return

                const { data: res } = await this.$http.put(`users/${this.editForm.id}`, this.editForm)

                if (res.meta.status !== 200) return this.$message.error('修改用户失败!')

                this.dialogEditFormVisible=false
                this.$refs.editFormRef.resetFields()

                this.getUserList()
                return this.$message.success('修改用户成功!')
            })
        },
        deleteUser(uId){
            this.$confirm("确认删除吗?", "提示", {
                confirmButtonText: "确定",
                cancelButtonText: "取消",
                type: "warning",
            })
            .then(async () => {
                const { data: res } = await this.$http.delete(`users/${uId}`)

                if (res.meta.status !== 200) return this.$message.error('删除用户失败!')

                this.getUserList()
                return this.$message.success('删除用户成功!')
            })
            .catch(() => {});
        },
        async setRole(userInfo){

            this.userInfo=userInfo

            const { data: res } = await this.$http.get('roles')

            if (res.meta.status !== 200) return this.$message.error('获取角色失败!')

            this.rolesList=res.data

            this.dialogRoleVisible = true
        },
        setRoleDialogClosed(){
            this.userInfo ={}
            this.dialogRoleVisible = false
        },
        async saveUserRoles(id){
            if(!this.selectedRoleId) return this.$message.error('请选择要分配的角色!')

            const { data: res } = await this.$http.put(`users/${id}/role`,{rid: this.selectedRoleId})

            if (res.meta.status !== 200) return this.$message.error('分配角色失败!')

            this.$message.success('更新角色成功！')

            this.getUserList()

            this.dialogRoleVisible = false
        }
    }
}
</script>

<style lang="less" scoped>

</style>